單項(xiàng)選擇題

His inability to learn foreign languages was a(n（）to his career.

A.objection
B.defect
C.obstacle
D.depression

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單項(xiàng)選擇題

In general , the amount that a student spends for housing should be held to one-fifth the total（）for living expenses.

A.acceptable
B.available
C.advisable
D.applicable

單項(xiàng)選擇題

When you go to the doctor he asks you to describe your（）so that he can make a diagnosis (診斷).

A.indications
B.signs
C.symbols
D.symptoms